Multitester tested for voltage. AC input: 100-240V and DC output: +22V 455mA. Triple round barrel connector. Hewlett Packard adaptor, adapter, transformer, powersupply, power supply, is compatible for many Deskjet and OfficeJet series printers. Please determine compatibility before purchase. Questions are encouraged. Photo is generic. Shape, size or color may differ.HP DeskJet: 2540, 2541, 2542, 2543, 2544, 2545, 2546, 2546B, 2546P, 2547, 2548, 2549, 2620. HP OfficeJet 2620, 2621, 2622, 2624, 2645, 2646, 6600 Special heavy wrapping is provided to protect the prongs. S&H in the contiguous USA is $5.(insured shipping). Please see other interesting items by JGrit USPS DELIVERY TIME: As stated in the item listing, seller will drop-off your item to the USPS within 5 days of receiving cleared payment. How long it takes to deliver to your door is strictly within USPS control and not within the control of seller. Please leave 5 stars for seller 5 day drop-off time.